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PHENOLPHTHALEIN INDICATOR

3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone

COAs

Packings

25 g (00025)

50 g (00050)

100 g (00100)

500 g (00500)

1PW1200100 1PW1200200 1PW1201000
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Article No. 05172 Grade
Purity CAS No. 77-09-8
Molecular Formula C20H14O4 Molecular Weight 318.33
H.S. Code 2932.2090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White powder
Odour Odorless Melting point/ Freezing point [°C] 261 - 263 °C
Density [g/cm3] 1.299 Solubility in water [% weight] Slightly soluble in water

Specifications

Appearance A white to off white powder pH range (8.2 - 10.0) Colourless to red-violet
Absorption maxima (buffer pH 9.8) 551 - 554 nm Sensitivity Passes test
Sulphated ash Max 0.05% Chloride (Cl) Max 0.01%
Sulphate (SO4) Max 0.01% Loss on drying (at 110°C) Max 1%

Safety Information and Hazard Symbols

Health Hazard
Symbol: GHS08
 Signal Word: Danger
 Hazardous Statement: H341-H350-H361f
 Precaution Statement: P201-P280-P308+P313
Revision Date: 24-May-2022

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